The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 13, 1997
Filed:
May. 17, 1994
Applicant:
Inventor:
Sang-sin Park, Suwon, KR;
Assignee:
Samsung Electronics Co., Ltd., Kyungki-Do, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J / ; B41J / ; B41J / ;
U.S. Cl.
CPC ...
347188 ; 347192 ;
Abstract
A thermal printer includes a dot number computing memory for detecting the number of dots which are simultaneously heated according to gradation by receiving image dam in line units, a dot number computing controller, a thermistor for detecting the temperature of a thermal print head (TPH), and a corrector for controlling the TPH to emit heat by gradation with a constant energy by varying the pulse width of a strobe signal depending on the detected number of simultaneous heated-by-gradation dots and temperature of the thermal print head, and the printing method thereof.